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Finding the Fourth Proportional to 8,907.63, 13,363.44 and 2,668.20

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Solution

The fourth proportional to 8,907.63, 13,363.44 and 2,668.20 is: 4,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.63 : 13,363.44 = 2,668.20 : x
  2. Step 2: Convert to fraction form
    8,907.63/13,363.44 = 2,668.20/x
  3. Step 3: Cross multiply
    8,907.63x = 13,363.44 × 2,668.20
  4. Step 4: Simplify right side
    8,907.63x = 35,656,330.61
  5. Step 5: Solve for x
    x = 35,656,330.61/8,907.63
  6. Step 6: Final answer
    x = 4,002.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.